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Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Other Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Jul. 25, 2017
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Short-term borrowings	$ 0.0	$ 3.9
Senior Notes	2,204.6	2,402.1
Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents	793.3	217.7
Short-term borrowings	0.0	3.9
Fair Value \| Fair Value, Inputs, Level 1
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents	793.3	217.7
Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Short-term borrowings	0.0	3.9
Term loan due December 22, 2024
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Term loan	0.0	200.0
Term loan due December 22, 2024 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	0.0	200.0
Term loan due December 22, 2024 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	0.0	200.0
3.15% Senior notes due August 1, 2027
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Term loan			$ 425.0
3.15% Senior notes due August 1, 2027 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	424.9	424.8
3.15% Senior notes due August 1, 2027 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	411.1	406.9
2.3% Senior notes due December 15, 2031 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	399.4	399.3
2.3% Senior notes due December 15, 2031 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	338.9	338.6
5.6% Senior notes due November 15, 2032 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	499.2	499.2
5.6% Senior notes due November 15, 2032 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	515.3	535.6
3.95% Senior notes due August 1, 2047
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Term loan			$ 400.0
3.95% Senior notes due August 1, 2047 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	397.8	397.7
3.95% Senior notes due August 1, 2047 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	307.7	333.7
5.0% Senior notes due June 15, 2052 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	499.9	499.8
5.0% Senior notes due June 15, 2052 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	$ 451.9	$ 498.1